Wavelength Range:
            Tuning Range (C band version): 1528.77 to 1563.86nm (191.7 to 196.1THz)
            Tuning Range (L band version): 1568.77 to 1607.47 nm (186.5 to 191.1 THz)
            
            Number of ITU Channels (C Band version): 89
            Number of ITU Channels (L Band version): 93
            Tuning Resolution: 50 GHz
            
            Optical Power (C band version): 13 dBm
            Optical Power (L band version): 10 dBm
            Power Ripple (over tuning range):0.3 dB typical)
            
            Side Mode Suppression Ratio (SMSR): > 40 dB
            Output Linewidth (Lorentz): < 5 MHz (1MHz typical)
            Average Relative Intensity Noise (RIN): < -110 dB/Hz (10 MHz -1GHz)
                                                    < -145 dB/Hz (1-10GHz) 
            OSNR (0.1nm Bandwidth): > 50 dB
            Polarization Extinction Ratio: > 20 dB
            Return Loss: > 40 dB
            Locked Frequency Accuracy: -1.8 to 1.8 GHz
            Shuttered Output Power: < -30 dBm
            Tuning Speed: 20 ms (for adjacent channels)
            Operating Modes:
                           Single wavelength output;
                           Single trip scanning
                           Round trip scanning
            Operating Temperature: 5 to 50 °C
            Storage Temperature: 0 to 70 °C
            Output Optical Interface: PM, FC/APC connector
            Communication Interfaces: USB, Ethernet, RS-232, and GPIB
            Power Supply: 100 – 240 VAC, 50 – 60 Hz
            Dimensions: 2U 19” rack, 14” (L) x 8.5” (W) x 3.5” (H)